Engraving-machine.



'BATENTED MAY 23, 1905. F. M. SWAYZBH I ENGRAVING MACHINE. APPLIUATION NEED APR. 22, 1903.

Patented May 23, 1905.

PATENT OFFICE.

FRANK M. SWAYZE, OF ST. DAVIDS, CANADA.

ENGRAVlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 790,328, dated May 23, 1905. A lication me April 22, 1903. Serial No. 153,849.

To all whom it may concern.-

' Be it known that I, FRANK M. SwAYzE, a citizen of Canada, residing at St. Davids, in the county of Lincoln, in the Province of Ontario, Canada, have invented a new and useful Engraving-Machine, of which the following is a specification.

My invention relates to improvements in engraving-machines, and has for its object to provide a simple and efficient constructionby which metal or other engravable substance can be neatly and quickly engraved.

The invention consists in the construction and combination of parts hereinafter particularly described and then sought to be specifically defined by the claims, reference being had to the accompanyingdrawings,forming part hereof, and

in which Figure 1 is a perspective view of entire'machine, showing its different parts. Fig. 2 is a side view of adjustable table devised to carry the article being engraved. Fig. 2 is a sectional view of same on the line :20 x of Fig. 1. Fig. 2 is a sectionalview of the plate carrying the adjustable triangular bar to which is connected the holder. Fig. 3 is a perspec tive of parts of graver and tracing arm, showing how pivoted to sleeves carrying said arms. Fig. 4 is a front view of the machine. Fig. 5 is a side view of the machine, and Fig. 6 is a view of spring locking device.

Similarletters refer to similar parts throughout the several views.

The frame A and the standard BB constitute the framework of thejmachine. Through the upper end of the standard BB passes an axle B, as shown in Fig. 3, and fixed thereto by a set screw threaded in standard BB. Revoluble on axle B are sleeves O and D, respectively. O has pivoted to its outer end the vertical graver-ar1n CC, as shown in Fig. 3, and carries at its inner end a sleeve revo1uble thereon and fixed thereto by a set-screw a. Extending downward from said sleeve is a scale-arm ad, made as a part thereof. The sleeve D has pivoted to its outer end the vertical tracing-arm DD and carries at its inner end a sleeve revoluble thereon and fixed thereto by set-screw b. Extending downward from the said sleeve is a scale-arm bl), made as a part thereof.

The letter E designates a shaft revoluble in standard BB, and carrying on each of its ends the scale-arms 66, secured thereto against independent movements. Pivoted to the vertical graver and tracer arms CC and DD, respectively, are the upright scalearms so in the manner illustrated in Fig. 3,

so as to allow movements forward and backward and to hold the -scalearms cc against independent movements to either side. Said arms are connected by an adjustable rod dd, pivoted to sleeves d, which are adjustable upon said arms and held at any degree of adjustment by set-screws d thereby adjustably spacing apart the tracer and graver arms and changing the width of letter or figure being engraved. The scale-arms ad and 1)?) are connected to the scale arms 66 by rods 0, made adjustable and pivotally connected to said arms, thereby changing the depth of letter or figure being engraved.

The letter F designates a guard-loop which serves to keep the scalearms cc and rod dd in upright position while moving graver and tracing arms forward and backward.

The letters EE designate the horizontal graver-arm, pivotally connected to vertical graver arm CC, so as to allow its free movement up or down, and it carries at its forward end the graver. Said arm EE has a shaft G passing through it and revoluble therein, having at its outer end the graver-chuck, made a part thereof. The graver is adjusted in said chuck by a' set-screw 9. U on the other end of shaft G is a cone threade to hold the shaft in position, said shaft passing through the cone and extending backward, carrying an adjustable weight or weights g, thus affording means of graduating the cutting power of graver.

The letters FF designate the horizontal tracerarm, pivotally connected to the vertical tracer-arm DD, so as to allow its free movement up or down, and it carries at its forward end the tracing-tool.

The letter H designates a rod running parallel to axle B and having its bearing in standards h, said standards being threaded into axle B, passing through slots in the sleeves C and D and serving to keep said sleeves on axle. Rod H carries at each of its ends a lever 7th, which serves to lift the graver-arm EE and tracer-arm FF by means of a coil-spring 77,2 on rod H. The levers hh being connected by rod or chain to the said graver and tracer arms hold the tools off the work while not in action and allow the graver to engage upon ressing the tracer in contact with type. rojecting from the upper forward end of standard BB and fixed to said standard is a rod I, having a sleeve t pivoted thereon, through which sleeve a vertical rod J passes and is held at any degree of adjustment by a set-screw u. Rod J carries at its lower end the arm K, attached thereto by a ball-bearing, which allows it to move in any direction, said arm K being attached to graver-chuck, thus making it possible to graduate the gravers cut by raising or lowering rod J.

Two plates L and M are held upon the graver side of frame A by means of beveled slides, allowing their free movement forward or backward upon frame A. Plate L is fixed at any point, forward or backward, by setscrew 1' and serves to carry a triangular bar LL, pivotally connected to said plate, as shown in Figs. 1, 2, 2, and 2*. Plate M slides upon the graver side of frame A similarly to plate L and is held against free movement, forward or backward, by two screws nn. Said screws are threaded in plate L and pass through plate M and are formed with grooves which admit a spring locking device mm, as shown in Fig. 6, making possible the rapid adj ustment of plateM to andfrom plate L. Said plate M has a block P dovetailed upon it, so as to allowits adjustment to either side and to be held to its adjustment place by set-screw 1'. In the center of said triangularbar LL, Figs. 2, 2 and 2 is alever Z, made a part thereof, passing downward through an opening in plate L and carrying at its end the set-screw '0, which acts against a semicircular guide 11, affording means of setting the triangular bar LL at any angle forward or backward. Dove- .tailed upon bar LL is the universal holder N,

divided into two jaws m and n, jaw m being adjustable thereon to either side and fixed at any place by set-screws ii. Jaw n slides upon two pins stationary in jaw m and is adjusted to and fro by means of screws The letter R designates a plate divided into three sections movable upon the tracer side of the frame A, the two spaces admitting two rows of type and the clamping being effected by the screws t, the forward section being aflixed to frame A by set-screw s.

The operation is as follows: The pattern or type to be traced is secured in the plate R, and the article to be engraved is secured between the jaws m and n or between plates L and M, according to its size and character.

The rod (id is then adjusted upon the scalearms cc for the width desired to be given to the letter or other character to be engraved, and the height of the letter is determined by adjustment of the rods 0 on the scale-arms (La and bb. The tracer-arm FF is then made to follow the lines of the letters or other article secured to the plate R, and the graverarm EE follows the same outline and cuts the design upon the article to be engraved. WVhen the pressure which lowered the tracerarm FF is taken off, the spring acting on the rod H lifts the tracer-arm and the graverarm.

The article being engraved can be moved backward or forward or transversely on the frame A as occasion. may require by adjusting the plates L and M as previously described. The foregoing is a general description of the operation of the machine, and taken in connection. with the description of the construction of the several parts will enable any person skilled in the art to fully understand and appreciate the features of the invention described.

I have illustrated and described what I consider to be the best form of my invention; but it is obvious that changes can, be made without departing from the essential features of the invention.

Having described my invention and set forth its merits, what I claim is 1. In an engraving-machine, the combination with a standard and axle, of sleeves revoluble on the axle, tracer and graver arms connected with each. other and to said sleeves, and means for adjustably spacing a )art said tracer and graver arms, substantially as described.

2. In an engraving-machino, the combination with a standard and axle, of sleeves revoluble on the axle, the tracer and graver arms connected with each other and to said sleeves, scale-arms pivotally connected with the sleeves and tracer and graver arms, and adjusting means connecting the scale-arms, substantially as described.

3. In an engraving-1nachine, the combination with a standard and. axle, of sleeves revoluble on the axle, the tracer and graver arms connected with each other and to said sleeves, scale-arms'pivotally connected with the sleeves and tracer and graver arms, adjusting means connecting the scale-arms, and a guard-loop for holding the scale-arms in an upright position, substantially as described.

4. In an engraving-machine, the combination with a standard and axle, of sleeves revoluble on the axle, the tracer and graver arms connected with each other and to said sleeves, scale-arms connected. to said sleeves, additional scale-arms connected to move together, and means adjustably connecting said additional scale-arms to the scale-arms which are connected to the sleeves, substantially as described.

5. In an engraving-machine, the combination with a standard and axle, of the tracer and graver arms having a rotatable connection with the axle, said tracer and graver arms having horizontally-extending portions capable of upanddown movement, and means connecting the tracer and graver arms and holding up both of said arms when they are out of action, substantially as described. I

6. In an en raving-machine, the combination of the p ates L and M located on the graver side of the machine-frame and adjustable to and from each other, the block P adjustable on the plate M, and holder N ad justable sidewise on the tially as described.

7. In an engraving-machine, the combination of the plate L located on the graver side of the machine-frame, a bar pivotally connected to said late, a holder N adjustable sidewise on said bar, and means for tilting said bar atvarious angles transversely to said sidewise adjustment and holding it at such angular adjustment, substantially as described.

platev L, substan- 8. In an engraving-machine, the combination of the plate L located on the graver side of the machine-frame, a bar pivotally connected to said plate, a holder N formed of two jaws adjustable to and from each other and having one of said jaws attached to said bar to be adjustable sidewise thereon, and means for tilting said bar at various angles to said sidewise adjustment, substantially as described.

9. An engraving-machine comprising a standard and axle, sleeves revoluble on the axle, tracer and graver arms connected with each other and to said sleeves, scale-arms pivotally connected with the sleeves and tracer and graver arms, adjusting means connectin said scale-arms, scale-arms movable with t e sleeves, additional scale-arms connected to move together, and means adjustably connecting said additional scale-arms to the scale-arms which move with the sleeves, substantially as described.

In testimony whereof I aflix my signature in the presence of two witnesses.

FRANK M. SWAYZE.

Witnesses:

C. C. SWAYZE', CHARLES V. BRADFORD. 

